Yep, First one is Bubble algae. You may want to remove rock and try to get bubble off rock then put back in or get a emerald crab. The second ones look like your troublesome glass anenomes (aitiptasia). You can shoot some kalk/RO water directly into them with a shringe and they usually dissapear.
another poormans way of getting rid of both is to start a syphon and scrape off with a razor at the bottom and suck out everything. it has worked for me with aptasia in the past. i would not recommend an emerald crab.......Crabs are Evil!
the boiling water trick just does'nt work, i have seen one of my lfs do this and they swear by it but its funny thier tanks are still full of them. get the joes juice i have heard nothing but good things about the product.
I have a friend that shoots red devil lye into them and melts them. He swears by it. Is it Safe? I have seen him mix the lye with water and use a shringe and shoot it directly into them...they dissapear really quick...It definitely works also..
1 (newest meathod) buy 3 Berghia. They do great when you can see them.
2 (newer meathod) Joes Juice. Love the stuff. Accidentally dropped ALOT on a couple corals without any side affects. (although my BTA reacts everytime I use it)
3 Cover with 2 part epoxy, or super glue. Seal the little jerk and give him a tombstone.
4. Injections... never really work.
5 Scrap it off.... only if you want hundreds more. Any single cell left behind seems to produce more.
It is a caustic acid that kills on contact, completely dissolving the organism's tissue. I have used it for two years with no negative effecf on my tank. About $5 per gallon, enough to last a life time, at Home Depot. Very cost effective, eh?